vcl/aqua/source/a11y/aqua11ylistener.cxx

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   9  * $RCSfile: aqua11ylistener.cxx,v $
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  31
  32 #include "aqua11ylistener.hxx"
  33 #include "aqua11yfactory.h"
  34 #include "aqua11yfocustracker.hxx"
  35 #include "aqua11ytextwrapper.h"
  36 #include "aqua11ywrapper.h"
  37 #include "salinst.h"
  38
  39 #include <com/sun/star/accessibility/AccessibleEventId.hpp>
  40 #include <com/sun/star/accessibility/AccessibleRole.hpp>
  41 #include <com/sun/star/accessibility/AccessibleTableModelChange.hpp>
  42 #include <com/sun/star/accessibility/AccessibleTableModelChangeType.hpp>
  43
  44 using namespace ::com::sun::star::accessibility;
  45 using namespace ::com::sun::star::awt;
  46 using namespace ::com::sun::star::lang;
  47 using namespace ::com::sun::star::uno;
  48
  49 NSString * getTableNotification( const AccessibleEventObject& aEvent )
  50 {
  51     AccessibleTableModelChange aChange;
  52     NSString * notification = nil;
  53
  54     if( (aEvent.NewValue >>= aChange) &&
  55         ( AccessibleTableModelChangeType::INSERT == aChange.Type || AccessibleTableModelChangeType::DELETE == aChange.Type ) &&
  56         aChange.FirstRow != aChange.LastRow )
  57     {
  58         notification = NSAccessibilityRowCountChangedNotification;
  59     }
  60
  61     return notification;
  62 }
  63
  64 //------------------------------------------------------------------------------
  65
  66 AquaA11yEventListener::AquaA11yEventListener(id wrapperObject, sal_Int16 role) : m_wrapperObject(wrapperObject), m_role(role)
  67 {
  68     [ m_wrapperObject retain ];
  69 }
  70
  71 //------------------------------------------------------------------------------
  72
  73 AquaA11yEventListener::~AquaA11yEventListener()
  74 {
  75     [ m_wrapperObject release ];
  76 }
  77
  78 //------------------------------------------------------------------------------
  79
  80 void SAL_CALL
  81 AquaA11yEventListener::disposing( const EventObject& Source ) throw( RuntimeException )
  82 {
  83     [ AquaA11yFactory removeFromWrapperRepositoryFor: [ (AquaA11yWrapper *) m_wrapperObject accessibleContext ] ];
  84 }
  85
  86 //------------------------------------------------------------------------------
  87
  88 void SAL_CALL
  89 AquaA11yEventListener::notifyEvent( const AccessibleEventObject& aEvent ) throw( RuntimeException )
  90 {
  91     NSString * notification = nil;
  92     id element = m_wrapperObject;
  93     Rectangle bounds;
  94
  95     // TODO: NSAccessibilityValueChanged, NSAccessibilitySelectedRowsChangedNotification
  96     switch( aEvent.EventId )
  97     {
  98         case AccessibleEventId::ACTIVE_DESCENDANT_CHANGED:
  99             if( m_role != AccessibleRole::LIST ) {
 100                 Reference< XAccessible > xAccessible;
 101                 if( aEvent.NewValue >>= xAccessible )
 102                     AquaA11yFocusTracker::get().setFocusedObject( xAccessible );
 103             }
 104             break;
 105
 106         case AccessibleEventId::NAME_CHANGED:
 107             notification = NSAccessibilityTitleChangedNotification;
 108             break;
 109
 110         case AccessibleEventId::CHILD:
 111             // only needed for tooltips (says Apple)
 112             if ( m_role == AccessibleRole::TOOL_TIP ) {
 113                 if(aEvent.NewValue.hasValue()) {
 114                     notification = NSAccessibilityCreatedNotification;
 115                 } else if(aEvent.OldValue.hasValue()) {
 116                     notification = NSAccessibilityUIElementDestroyedNotification;
 117                 }
 118             }
 119             break;
 120
 121         case AccessibleEventId::INVALIDATE_ALL_CHILDREN:
 122             // TODO: depricate or remember all children
 123             break;
 124
 125         case AccessibleEventId::BOUNDRECT_CHANGED:
 126             bounds = [ element accessibleComponent ] -> getBounds();
 127             if ( m_oldBounds.X != 0 && ( bounds.X != m_oldBounds.X || bounds.Y != m_oldBounds.Y ) ) {
 128                 NSAccessibilityPostNotification(element, NSAccessibilityMovedNotification); // post directly since both cases can happen simultaneously
 129             }
 130             if ( m_oldBounds.X != 0 && ( bounds.Width != m_oldBounds.Width || bounds.Height != m_oldBounds.Height ) ) {
 131                 NSAccessibilityPostNotification(element, NSAccessibilityResizedNotification); // post directly since both cases can happen simultaneously
 132             }
 133             m_oldBounds = bounds;
 134             break;
 135
 136         case AccessibleEventId::SELECTION_CHANGED:
 137             notification = NSAccessibilitySelectedChildrenChangedNotification;
 138             break;
 139
 140         case AccessibleEventId::TEXT_SELECTION_CHANGED:
 141             notification = NSAccessibilitySelectedTextChangedNotification;
 142             break;
 143
 144         case AccessibleEventId::TABLE_MODEL_CHANGED:
 145             notification = getTableNotification(aEvent);
 146             break;
 147
 148         case AccessibleEventId::CARET_CHANGED:
 149             notification = NSAccessibilitySelectedTextChangedNotification;
 150             break;
 151
 152         case AccessibleEventId::TEXT_CHANGED:
 153             notification = NSAccessibilityValueChangedNotification;
 154             break;
 155
 156         default:
 157             break;
 158     }
 159
 160     if( nil != notification )
 161         NSAccessibilityPostNotification(element, notification);
 162 }